The Old Man smiled, looking down on his newest creation. His Game of Change had been such a success that he'd made a new version, based on the Dungeons and Dragons role playing game.
The Old man was in reality a colossal nerd, although he was quite careful to hide that fact. Needless to say it was embarrassing being into fantasy when you were in his line of work.
The game's rules were essentially the same as those of AD&D, with some magical additions. Anyone that played the game would become their character, and the monsters and quests all tended to involve transformations of all kinds.
Now all that was left was to wait for a customer to test it on...